Polarizer and display device comprising the same

Patent metadata

Field	Value
Publication number	US-9933655-B2
Application number	US-201514887916-A
Country	US
Kind code	B2
Filing date	Oct 20, 2015
Priority date	Jan 13, 2015
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A polarizer includes a substrate; a plurality of metal lines on the substrate, the plurality of metal lines each having a first width and a first height and being spaced apart from and parallel to each other with a first gap therebetween; and a hydrophobic coating layer on the metal line. The polarizer may be directly formed on the substrate, allowing for manufacture of light-weight and thin film structure of display device.

First claim

What is claimed is:

1. A polarizer comprising:
a substrate;
a plurality of metal lines on the substrate, the plurality of metal lines each having a first width and a first height and being spaced apart from and parallel to each other with a first gap therebetween;
a hydrophobic coating layer on the metal line, and
wherein the hydrophobic coating layer is a self-assembled monolayer which comprises a chemical compound represented by the following Chemical Formula 1:

wherein Y is one of silicon (Si), and carbon (C) bonded or unbonded to a substituent;
R is one of:
a substituted or unsubstituted aromatic group having 6 to 30 carbon atoms,
a substituted or unsubstituted heteroaromatic group having 5 to 30 carbon atoms containing one or more hetero atoms,
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms, and
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms and containing at least one of

in a main chain, the substituent comprising one or more of a halogen atom, an alkyl group having 1 to 12 carbon atoms that is substituted or unsubstituted with a halogen atom, an alkoxy group, an ether group, a carboxyl group, a thiol group, and an amine group; and
X is one of CF n , CBr m , and a substituted or unsubstituted aryl group.

2. The polarizer of claim 1 , wherein the first width is in a range of about 50 nm to about 200 nm.

3. The polarizer of claim 1 , wherein the first height is in a range of about 50 nm to about 250 nm.

4. The polarizer of claim 1 , wherein the first gap is in a range of about 50 nm to about 200 nm.

5. The polarizer of claim 1 , wherein the self-assembled monolayer has a thickness in a range of about 0.2 nm to about 5 nm.

6. A polarizer comprising:
a substrate;
a plurality of metal lines on the substrate, the plurality of metal lines each having a first width and a first height and being spaced apart from and parallel to each other with a first gap therebetween, at least one metal line of the plurality of metal lines is in contact with the substrate; and
a hydrophobic coating layer on the at least one metal line,
wherein the hydrophobic coating layer is a self-assembled monolayer which comprises a chemical compound represented by the following Chemical Formula 3:

wherein R is one of:
a substituted or unsubstituted aromatic group having 6 to 30 carbon atoms,
a substituted or unsubstituted heteroaromatic group having 5 to 30 carbon atoms containing one or more hetero atoms,
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms, and
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms and containing at least one of

in a main chain, the substituent comprising one or more of a halogen atom, an alkyl group having 1 to 12 carbon atoms that is substituted or unsubstituted with a halogen atom, an alkoxy group, an ether group, a carboxyl group, a thiol group, and an amine group,
X is one of CF n , CBr m , and a substituted or unsubstituted aryl group.

7. The polarizer of claim 6 , wherein the chemical compound represented by Chemical Formula 3 is represented by any one of the following Chemical Formulas 4 to 6:

wherein Z is one of sulfur, nitrogen, carbon and oxygen,
m is an integer selected from 0 to 20,
n is an integer selected from 0 to 20, and
X is one of CF n , CBr m , and a substituted or unsubstituted aryl group;

wherein X 1 , X 2 , X 3 , X 4 , and X 5 each independently represent hydrogen, a halogen atom, or an alkyl group having 1 to 30 carbon atoms substituted with one or more of hydrogen, a halogen atom, oxygen or nitrogen,
m is an integer selected from 1 to 20, and
n is an integer selected from 0 to 20; and

wherein X 6 represents a halogen atom or CF 3 , and
h is an integer selected from 1 to 5.

8. The polarizer of claim 1 , further comprising a protective layer provided in a plate form and disposed over upper portions of the plurality of metal lines.

9. The polarizer of claim 1 , further comprising a plurality of masks being disposed respectively on the plurality of metal lines.

10. The polarizer of claim 9 , further comprising a protective layer provided in a plate form and disposed over the plurality of masks.

11. A display device comprising:
a first substrate;
a plurality of metal lines on the first substrate, the plurality of metal lines each having a first width and a first height and being spaced apart from and parallel to each other with a first gap therebetween;
a hydrophobic coating layer on the metal line;
a second substrate;
a liquid crystal layer between the first substrate and the second substrate, and
wherein the hydrophobic coating layer is a self-assembled monolayer which comprises a chemical compound represented by any one of the following Chemical Formulae 1 and 3:

wherein Y is one of silicon (Si), and carbon (C) bonded or unbonded to a substituent;
R is one of:
a substituted or unsubstituted aromatic group having 6 to 30 carbon atoms,
a substituted or unsubstituted heteroaromatic group having 5 to 30 carbon atoms containing one or more hetero atoms,
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms, and
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms and containing at least one of

in a main chain, the substituent comprising one or more of a halogen atom, an alkyl group having 1 to 12 carbon atoms that is substituted or unsubstituted with a halogen atom, an alkoxy group, an ether group, a carboxyl group, a thiol group, and an amine group; and
X is one of CF n , CBr m , and a substituted or unsubstituted aryl group;

wherein R is one of:
a substituted or unsubstituted aromatic group having 6 to 30 carbon atoms,
a substituted or unsubstituted heteroaromatic group having 5 to 30 carbon atoms containing one or more hetero atoms,
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms, and
a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms and containing at least one of

in a main chain, the substituent comprising one or more of a halogen atom, an alkyl group having 1 to 12 carbon atoms that is substituted or unsubstituted with a halogen atom, an alkoxy group, an ether group, a carboxyl group, a thiol group, and an amine group,
X i

Assignees

• Samsung Display Co Ltd

Inventors

• Ahn Taeyoung
• Oh Jihoon

Classifications

• G02F2001/133548

  Physics · mapped topic

• Y10T428/10

  Cross-Sectional Technologies · mapped topic

• Y10T428/1041

  Cross-Sectional Technologies · mapped topic

• G02B1/18

  Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films (G02B1/16 takes precedence) · CPC title

• G02B5/3058 Primary

  comprising electrically conductive elements, e.g. wire grids, conductive particles · CPC title